Projects per year
Abstract
The use of Li-ion batteries (LIBs) is continuously growing, leading to a corresponding increase in the volume of end-of-life LIBs. Recycling of LIBs not only ensures the safe management of hazardous waste, but also minimizes the losses of valuable materials. While for some battery metals, such as Co, Ni, and Cu, industrial recovery processes have already been established, graphite is currently discarded as waste. This research introduces an innovative approach to create a bifunctional oxygen electrocatalyst by using the graphite waste fraction from hydrometallurgical recycling. Notably, we strategically utilized the residual metals left in the graphite fraction to achieve high electrocatalytic activity for both the ORR and OER under alkaline conditions. Our novel black mass-derived oxygen electrocatalyst was used as an air cathode catalyst in Zn-air batteries and demonstrated a high power density of 104 mW cm−2 with outstanding long-term stability of 80 hours. This work unlocks new opportunities for repurposing overlooked graphite waste in energy conversion and storage applications.
Original language | English |
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Pages (from-to) | 2874-2883 |
Number of pages | 10 |
Journal | Green Chemistry |
Volume | 26 |
Issue number | 5 |
Early online date | 10 Jan 2024 |
DOIs | |
Publication status | Published - 31 Jan 2024 |
MoE publication type | A1 Journal article-refereed |
Fingerprint
Dive into the research topics of 'Supporting critical raw material circularity - upcycling graphite from waste LIBs to Zn-air batteries'. Together they form a unique fingerprint.Projects
- 1 Finished
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BATCircle2: Finland-based circular ecosystem of battery metals
Lundström, M. (Principal investigator), Karppinen, A. (Project Member), Revitzer, H. (Project Member), Sahlman, M. (Project Member), Lappalainen, H. (Project Member), Rinne, M. (Project Member), Chernyaev, A. (Project Member), Wang, Z. (Project Member), Partinen, J. (Project Member), Alajoki, J. (Project Member), Halli, P. (Project Member), Zou, Y. (Project Member), Wilson, B. (Project Member), Vänskä, J. (Project Member), Palomäki, H. (Project Member), Sibarani, D. (Project Member), Klemettinen, L. (Project Member), Liljanko, H. (Project Member), Tran, H. (Project Member) & Porkola, T.-M. (Project Member)
01/05/2021 → 30/04/2024
Project: Business Finland: Strategic centres for science, technology and innovation (SHOK)
Equipment
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OtaNano - Nanomicroscopy Center
Seitsonen, J. (Manager) & Rissanen, A. (Other)
OtaNanoFacility/equipment: Facility
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Raw Materials Research Infrastructure
Karppinen, M. (Manager)
School of Chemical EngineeringFacility/equipment: Facility
Press/Media
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Data on Chemicals and Chemistry Discussed by Researchers at National Institute of Chemical Physics and Biophysics (NICPB) (Supporting Critical Raw Material Circularity - Upcycling Graphite From Waste Libs To Zn-air Batteries)
28/02/2024
1 item of Media coverage
Press/Media: Media appearance
Research output
- 3 Citations
- 1 Article
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Utilizing waste lithium-ion batteries for the production of graphite-carbon nanotube composites as oxygen electrocatalysts in zinc–air batteries
Praats, R., Sainio, J., Vikberg, M., Klemettinen, L., Wilson, B. P., Lundström, M., Kruusenberg, I. & Liivand, K., 1 Jan 2025, In: RSC Sustainability. 3, 1, p. 546-556 11 p.Research output: Contribution to journal › Article › Scientific › peer-review
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